Range Chart plotter

This page allows you to plot ranges of species as given on this website and compare them with the occurrence data in the Neptune database. An obvious conclusion is that the Neptune database data is a rather incomplete record of the biodiversity of the group and that total ranges cannot be accurately determined from the Neptune data. Nonetheless the Neptune data does serve to highlight which taxa are abundant.

For Cenozoic planktonic forams you can also plot evolutionary trees (Select tree as the sorting mode).

Blue histograms or spindle diagrams plot the frequency of occurrence of the taxon (and synonyms) in the Neptune database. Solid purple >50 samples in time bin, below this transparency increases.

Range boxes show the ranges recorded on this website Pink - interval within which LAD occurs, Green - interval within which FAD occurs.

Hold cursor over plot to get 'tool tip' info on colours and plotted values.

BEWARE - Neptune does not really have enough data in the Cretaceous to be very reliable. Likewise some ranges from the website are only rough estimates.
For more explanation of the database and important warnings on using the plots - Neptune database introduction